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Seattle Center’s legacy of providing residents and visitors access to world-class arts, education, and recreation opportunities in a central location began in 1962 with the Century 21 World’s Fair. The Seattle Center Century 21 Master Plan guides the ongoing redevelopment of the Seattle Center's 74-acre campus in response to the needs of a diverse and dynamic community. More information on the Century 21 Master Plan can be found at the bottom of the page.

As stewards of the campus, the Seattle Center department is actively working on major maintenance, capital improvements, and long-term planning projects, including:

Seattle Center and the Seattle Center Foundation are proud to announce the completion of the Seattle Center Strategic Vision and 10-Year Action Plan—a bold, forward-looking roadmap to guide the campus into the next decade.

Developed through nearly a year of research, community input, and best-practice benchmarking from cultural districts around the world, the plan lays out a clear strategy to ensure Seattle Center remains a vibrant, inclusive, and sustainable civic space for generations to come.
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Seattle Center and Pacific Science Center are planning for the future — together. Explore our new partnership focused on unlocking public spaces, preserving history, and creating new opportunities for learning and innovation.
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Construction is under way for the redevelopment of Memorial Stadium at Seattle Center. The reimagined, state-of-the-art stadium will be a place for everyone, including year-round student athletics, education, and a diverse array of arts, culture, entertainment, and community events, while creating new open space and transforming the heart of the Seattle Center campus for future generations.
Memorial Stadium Microsite
Seattle Center has engaged GGN to redesign Thomas Street over four blocks between 5th Ave. N. and 2nd Ave N. with a new festival street design featuring quality paving, landscaping, lighting and seating. Thomas Street is the busiest pedestrian corridor on the Seattle Center campus, its retail nexus, and the point of arrival for visitors from around Seattle, the region, and the world, and connects to the surrounding neighborhoods. The project seeks to unify and revitalize Thomas Street, creating an engaging public space that complements Seattle Center’s mix of programs, attractions, and open spaces and invites visitors to linger and enjoy. The project is currently in Schematic Design.
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Bagley Wright Theatre Exterior Upgrades

The Bagley Wright Theatre exterior recladding and select roof replacement project is nearing completion and has resolved decades-old leaks. Full project completion is anticipated end of Q3 2026, with theatre operations continuing as usual.

Bollard Replacement Project

Seattle Center is updating traffic control and security bollards at several key entrances across campus. The goal is to improve safety while keeping the campus open, accessible, and welcoming for all visitors. Work will take place at eight priority locations. The new bollards will meet current safety standards and are designed to be reliable, easy to operate, and compatible with emergency and service vehicles. Just as importantly, installation will ensure walkways remain clear for pedestrians, bikers, and mobility devices. More than 11 million people visit Seattle Center each year for events, performances, festivals, and everyday use of public spaces. These upgrades help the campus continue to host safe, welcoming, and inclusive gatherings for the whole community.

Seattle Center Emergency Power Upgrade

Planning and design are underway to replace a 60-year old generator in the Armory with a new generator which will be powered, at least in part, by renewable resources. The new generator will support emergency functions in both the Armory and Fisher Pavilion. Many renewable resources are being considered in the design, including a solar installation on the Armory roof. Construction on this project is pending scheduling of adjacent projects.

Wireless Infrastructure Upgrades

Major upgrades to campus wireless infrastructure are almost complete, which will result in higher quality service for all visitors. Full project completion is anticipated in 2026.

Download Campus Planning Documents

Century 21 Master Plan Downloads

Campus Sponsors